<head>
  <meta charset="utf-8"/>
</head>

<h3>普通无边框表格：</h3>
<table>
<tr>
  <td>row 1 cell 1</td>  <td>row 1 cell 2</td>  <td>row 1 cell 3</td>
</tr>
<tr>
  <td>row 2 cell 1</td>  <td>row 2 cell 2</td>  <td>row 2 cell 3</td>
</tr>
</table>

<h3>带表头、有边框、有跨列单元：</h3>
<table  border="1">
<tr> 
  <th> head 1 </th>  <th> head 2 </th>  <th> head 3 </th>
</tr>
<tr>
  <td>row 1 cell 1</td>  <td>row 1 cell 2</td>  <td>row 1 cell 3</td>
</tr>
<tr>
  <td>row 2 cell 1</td>  <td colspan="2">row 2 cell 2</td>  
</tr>
</table>
